Error MSB8029 and MSB3073 when doing `flet build windows`

[Azka79]

I get a problem every time I do a flet build windows. I've tried upgrading my Flutter and Visual Studio. I even tried changing my TEMP file, but the error warnings MSB8029 and MSB3073 kept appearing. What should I do?

here is the error log:

Flutter bootstrap directory: D:\TEMP\flet_flutter_build_RwfXu2c21J
Additional Flutter dependencies:
{}
Creating Flutter bootstrap project...OK
Customizing app icons and splash images...OK
Generating app icons...
Run subprocess: ['C:\\Users\\nadiy\\dev\\flutter\\bin\\dart.BAT', 'run', 'flutter_launcher_icons']
Resolving dependencies in `D:\TEMP\flet_flutter_build_RwfXu2c21J`... (2.8s)
Downloading packages...
Got dependencies in `D:\TEMP\flet_flutter_build_RwfXu2c21J`.
Building package executable... (1.8s)
Built flutter_launcher_icons:flutter_launcher_icons.
  ════════════════════════════════════════════
     FLUTTER LAUNCHER ICONS (v0.13.1)
  ════════════════════════════════════════════

• Creating default icons Android
• Overwriting the default Android launcher icon with a new icon
• Overwriting default iOS launcher icon with new icon
Creating Icons for Web...
Creating Icons for Windows...
Creating Icons for MacOS...

✓ Successfully generated launcher icons
OK
Packaging Python app...
Run subprocess: ['C:\\Users\\nadiy\\dev\\flutter\\bin\\dart.BAT', 'run', 'serious_python:main', 'package',  
'D:\\KULIAH\\SEMESTER 6\\ASN\\Try GUI', '--dep-mappings', 'flet=flet-embed', '--req-deps', 'flet-embed',    
'--exclude', 'build']
Resolving dependencies in `D:\TEMP\flet_flutter_build_RwfXu2c21J`... 
Downloading packages...
Got dependencies in `D:\TEMP\flet_flutter_build_RwfXu2c21J`.
Building package executable... 
Built serious_python:main.
Running package command
Creating asset directory: D:\TEMP\flet_flutter_build_RwfXu2c21J\app
Copying Python app from D:\KULIAH\SEMESTER 6\ASN\Try GUI to D:\TEMP\serious_python_temp1ff4e45
Installing dependencies [flet-embed] with pip command to D:\TEMP\serious_python_temp1ff4e45\__pypackages__
Extracting Python distributive from D:\TEMP\cpython-3.11.6+20231002-x86_64-pc-windows-msvc-shared-install_only.tar.gz to D:\TEMP\hostpython3.11_117fc14c
Compiling Python sources at D:\TEMP\serious_python_temp1ff4e45
Delete unnecessary files with extensions: [.py, .c, .h, .typed, .exe]
Delete unnecessary files and directories: [__pycache__, bin]
Creating app archive at D:\TEMP\flet_flutter_build_RwfXu2c21J\app/app.zip from D:\TEMP\serious_python_temp1ff4e45
Deleting temp directory D:\TEMP\serious_python_temp1ff4e45
Deleting Python directory D:\TEMP\hostpython3.11_117fc14c
OK
Building Windows app...
Run subprocess: ['C:\\Users\\nadiy\\dev\\flutter\\bin\\flutter.BAT', 'build', 'windows']
Resolving dependencies... 
Downloading packages...
  file_picker 6.2.1 (8.0.2 available)
  fl_chart 0.65.0 (0.67.0 available)
  flutter_lints 2.0.3 (3.0.2 available)
  flutter_markdown 0.6.23 (0.7.1 available)
  flutter_native_splash 2.3.7 (2.4.0 available)
  js 0.6.7 (0.7.1 available)
  leak_tracker 10.0.4 (10.0.5 available)
  leak_tracker_flutter_testing 3.0.3 (3.0.5 available)
  lints 2.1.1 (3.0.0 available)
  material_color_utilities 0.8.0 (0.11.1 available)
  meta 1.12.0 (1.14.0 available)
  package_info_plus 4.2.0 (8.0.0 available)
  package_info_plus_platform_interface 2.0.1 (3.0.0 available)
  petitparser 5.4.0 (6.0.2 available)
  sensors_plus 4.0.2 (5.0.1 available)
  test_api 0.7.0 (0.7.1 available)
  toml 0.14.0 (0.15.0 available)
  xml 6.3.0 (6.5.0 available)
Got dependencies!
18 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.

windows/flutter/CMakeLists.txt does not use FLUTTER_TARGET_PLATFORM, updating.
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\ZERO_CHECK.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\plugins\serious_python_windows\CopyPythonDLLs.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\flutter\flutter_assemble.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\flutter\flutter_wrapper_app.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\flutter\flutter_wrapper_plugin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\plugins\screen_retriever\screen_retriever_plugin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\plugins\serious_python_windows\serious_python_windows_plugin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.39.33519\include\format(42): warning STL4038: The contents of <format> are available only with C++20 or later. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\plugins\serious_python_windows\serious_python_windows_plugin.vcxproj]       
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\plugins\url_launcher_windows\url_launcher_windows_plugin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\plugins\window_manager\window_manager_plugin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\plugins\window_to_front\window_to_front_plugin.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\runner\try_gui.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\ALL_BUILD.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppBuild.targets(541,5): warning MSB8029: The Intermediate directory or Output directory cannot reside under the Temporary directory as it could lead to issues with incremental build. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: The command "setlocal [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe" -DBUILD_TYPE=Release -P cmake_install.cmake [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: if %errorlevel% neq 0 goto :cmEnd [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: :cmEnd [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: endlocal & call :cmErrorLevel %errorlevel% & goto :cmDone [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: :cmErrorLevel [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: exit /b %1 [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: :cmDone [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: if %errorlevel% neq 0 goto :VCEnd [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(166,5): error MSB3073: :VCEnd" exited with code 1. [D:\TEMP\flet_flutter_build_RwfXu2c21J\build\windows\x64\INSTALL.vcxproj]
Building Windows application...                                   156.9s
Build process failed.
Deleting Flutter bootstrap directory D:\TEMP\flet_flutter_build_RwfXu2c21J

Run subprocess: ['C:\\Users\\nadiy\\dev\\flutter\\bin\\flutter.BAT', '--version']
Error building Flet app - see the log of failed command above.

The information from my flutter doctor does not show any errors and the version of flet is 0.22.0

C:\Users\nadiy>flutter doctor -v
[√] Flutter (Channel beta, 3.22.0-0.3.pre, on Microsoft Windows [Version 10.0.22631.3447], locale en-US)
    • Flutter version 3.22.0-0.3.pre on channel beta at C:\Users\nadiy\dev\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 87b652410d (3 days ago), 2024-04-23 21:41:18 -0500
    • Engine revision b4bfd45986
    • Dart version 3.4.0 (build 3.4.0-282.3.beta)
    • DevTools version 2.34.3

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at C:\Users\nadiy\AppData\Local\Android\Sdk
    • Platform android-34, build-tools 34.0.0
    • ANDROID_SDK_ROOT = C:\Users\nadiy\AppData\Local\Android\Sdk
    • Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
    • Java version OpenJDK Runtime Environment (build 17.0.9+0--11185874)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Build Tools 2022 17.9.6)
    • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools
    • Visual Studio Build Tools 2022 version 17.9.34728.123
    • Windows 10 SDK version 10.0.22621.0

[√] Android Studio (version 2023.2)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 17.0.9+0--11185874)

[√] VS Code (version 1.88.1)
    • VS Code at C:\Users\nadiy\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.86.0

[√] Connected device (4 available)
    • Preview (desktop) • preview • windows-x64    • preview
    • Windows (desktop) • windows • windows-x64    • Microsoft Windows [Version 10.0.22631.3447]
    • Chrome (web)      • chrome  • web-javascript • Google Chrome 122.0.6261.131
    • Edge (web)        • edge    • web-javascript • Microsoft Edge 124.0.2478.51

[√] Network resources
    • All expected network resources are available.

• No issues found!

[EmberLightVFX]

I'm having the exact same problem like you have
I'm running Python 3.12.2
My flet program lies in a /src/ subdir (/src/main.py)

I'm attaching the logs I'm getting when I run flet build windows src\ -vv

log.txt

[echidne]

Hi.
I had the same prob recently.
It was working in the past but I decided to install a "full" version of Visual studio not only the components. Bu I forget to check the case for the installation of the desktop development tools in c++ and .net. When I installed them again and I stop to have the MSB8029 and MSB3073 errors

[Azka79]

Thank you for your suggestion. I have tried installing the C++ and .NET development tools as you recommended, but I am still encountering the same errors (MSB8029 and MSB3073).

Could you provide a more detailed explanation on how to check if the C++ and .NET development tools are installed correctly? Is it necessary to install a previous version of MSVC? Perhaps there are specific steps or settings that I might have missed?

[daxel123]

I had the same problem and I thought it was the reason for my app to crash after compilation, but in my case, I ignore it and my app works. A small advice, try to create a new environment and check the requirements.txt again and run, I miss one package and that was the error.

[echidne]

@Azka79 do you have only one Visual Build tools installed? Check also if C++ and . net development are installed using modify in the Visual Studio Installer and look if they are checked in "Desktop and Mobile" .

[Azka79]

I had the same problem and I thought it was the reason for my app to crash after compilation, but in my case, I ignore it and my app works. A small advice, try to create a new environment and check the requirements.txt again and run, I miss one package and that was the error.

Is there a way to ignore these errors? In my case, the build folder always gets deleted when the build fails. I don't believe there's an issue with my requirements.txt file. I've successfully published it on the web, but these errors keep appearing when I try to build windows.

[Azka79]

@echidne I believe I already have the necessary C++ and .NET.

[echidne]

Hi @Azka79 ,
in your screen shot the components look to be correctly installed.
Do you have only one visual studio installed? In my case the prob come because I had several version installed and the one that was using flet did not have the C++ and .Net for desktop installed

Other thing to try : to get rid of problem with requirements:
- flet create helloworld

• main.py should be:

import flet as ft


def main(page: ft.Page):
    page.add(ft.SafeArea(ft.Text("Hello, Flet!")))


ft.app(main)

• Check in requirements.txt you have flet
• then flet build windows

If that works that means the visual studio components are correctly installed

[Azka79]

Hi @echidne ,
I'm really sorry for the delayed response to your suggestions. I only have one version, could this cause problems?
I also tried your suggestion to build on the flet create myapp . But I still get the same error

[echidne]

Hi @Azka79,
If the simple "hello world" app is not building that means we can exclude problemes with external packages. The most logical explannation I'm able to think about is something is wrong with your VS components installation.
Can you install that tool from Microsoft ? To do that type that in your Powershell Terminal :

Install-Module VSSetup -Scope CurrentUser

Choose the 'Y' option to install it.

then

Get-VSSetupInstance

and show us the result

[ReconFito]

Hi,
I have the same error a few minutes ago, the solution it work for me was creating a requirements.txt on top of my application folder, inside that file I add flet==0.22.*

Sorry for my bad english.

[Azka79]

@echidne , I got this

InstanceId          : 8caa50c6
DisplayName         : Visual Studio Build Tools 2022
InstallationVersion : 17.9.34728.123
InstallationPath    : C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools
InstallDate         : 4/8/2024 6:50:33 PM